<template>
  <transition name="move">
    <div v-show="foodShow" class="food" ref="food">
      <div class="food-content">
        <div class="image-wrapper">
          <img class="img" :src="food.image">
          <div class="back" @click.stop.prevent="back">
            <i class="icon-arrow_lift"></i>
          </div>
        </div>
        <div class="content">
          <h1 class="title">{{food.name}}</h1>
          <div class="detail">
            <span class="sell-count">月售{{food.sellCount}}份</span>
            <span class="rating">好评率{{food.rating}}</span>
          </div>
          <div class="price">
            ￥
            <span class="now">{{food.price}}</span>
            <span class="old" v-show="food.oldPrice">￥{{food.oldPrice}}</span>
          </div>
          <transition  name="buyFade">
            <div class="buy" v-show="buyShow" @click.stop.prevent="addFirst">加入购物车</div>
          </transition>
          <div class="cartcontrol-wrapper">
            <cartcontrol :food="food"></cartcontrol>
          </div>
        </div>
        <split v-show="food.info"></split>
        <div class="info" v-show="food.info">
          <h1 class="title">商品信息</h1>
          <p class="text">{{food.info}}</p>
        </div>
        <split></split>
        <div class="rating">
          <h1 class="title">商品评价</h1>
          <ratingselect
            :selectType="selectType"
            :onlyContent="onlyContent"
            :desc="desc"
            :ratings="food.ratings"
            @typeChange="typeChange"
            @onlyContentChange="onlyContentChange"
          ></ratingselect>
          <div class="rating-wrapper">
            <ul v-show="food.ratings&&food.ratings.length">
              <li class="rating-item" v-show="needShow(rating.rateType,rating.text)" v-for="(rating,index) in food.ratings" :key="index">
                <div class="user">
                  <span class="name">{{rating.username}}</span>
                  <img class="avatar" width="12" height="12" :src="rating.avatar">
                </div>
                <div class="time">{{rating.rateTime | format}}</div>
                <p class="text">
                  <span :class="{'icon-thumb_up':rating.rateType===0,'icon-thumb_down':rating.rateType===1}"></span>{{rating.text}}
                </p>
              </li>
            </ul>
            <div class="no-rating" v-show="!food.ratings||food.ratings.length===0">
              暂无评价
            </div>
          </div>
        </div>
      </div>
    </div>
  </transition>
</template>

<script>
import bscroll from 'better-scroll'
import cartcontrol from '../cartcontrol/cartcontrol'
import split from '../split/split'
import ratingselect from '../ratingselect/ratingselect'
import {formatDate} from '../../common/js/formatDate'

const ALL = 2;
const POSITIVE = 0;
const NEGATIVE = 1;

export default {
  name: "food",
  data () {
    return {
      foodShow: false,
      selectType: ALL,
      onlyContent: false,
      desc: {
        all: '全部',
        positive: '推荐',
        negative: '吐槽'
      }
    }
  },
  props: {
    food: {
      type: Object
    }
  },
  computed: {
    buyShow() {
      return !this.food.count||this.food.count===0
    }
  },
  methods: {
    show() {
      this.foodShow = true
      this.selectType = ALL
      this.onlyContent = false
      this.$nextTick(()=>{
        if (!this.scroll) {
          this.scroll = new bscroll(this.$refs.food, {
            click: true
          })
        }
        this.scroll.refresh()
      })
    },
    back() {
      this.foodShow = false
    },
    addFirst(){
      if (!this.food.count) {
        this.$set(this.food, 'count', 1)
      } else {
        this.food.count++
      }
      this.$store.commit({
        type: 'initBallEle',
        el: event.target
      })
      this.$root.$emit('add_cart')
    },
    needShow (type,text) {
      if (this.foodShow === false) {
        return;
      }
      if (this.onlyContent && !text) {
        return false
      }
      if (this.selectType == ALL) {
        return true
      }else{
        return this.selectType === type
      }
    },
    typeChange(type) {
      this.selectType = type
      this.$nextTick(() => {
        this.scroll.refresh()
      })
    },
    onlyContentChange() {
      this.onlyContent = !this.onlyContent
      this.$nextTick(() => {
        this.scroll.refresh()
      })
    }
  },
  filters:{
    format(time){
      let date = new Date(time)
      return formatDate(date, 'yyyy-MM-dd hh:mm')
    }
  },
  components:{
    cartcontrol,
    split,
    ratingselect
  }
}
</script>

<style lang="stylus" scoped>
@import "../../assets/styles/mixin.styl"
  .food
    position fixed
    left 0
    top 0
    bottom 48px
    z-index 30
    width 100%
    background: #ffffff;
    transition: all 0.5s
    &.move-enter,&.move-leave-active
      transform: translate3d(100%,0,0)
    .food-content
      .image-wrapper
        position relative
        width 100%
        height 0
        padding-top 100%
        .img
          position absolute
          top 0
          left 0
          width 100%
          height 100%
        .back
          position absolute
          top 10px
          left 0
          .icon-arrow_lift
            display block
            padding 10px
            font-size 20px
            color #fff
      .content
        position relative
        padding 18px
        .title
          margin-bottom 8px
          line-height 14px
          font-size 14px
          font-weight 700
          color rgb(7, 17, 27)
        .detail
          margin-bottom 18px
          height 10px
          line-height 10px
          font-size 0
          .sell-count,.rating
            font-size 10px
            color: rgb(147,153,159)
          .sell-count
            margin-right 12px

        .price
          line-height 24px
          font-size 10px
          font-weight 700
          color rgb(240, 20, 20)
          .now
            margin-right 8px
            font-size 14px
          .old
            text-decoration line-through
            color rgb(147,153,159)
        .cartcontrol-wrapper
          position absolute
          right 12px
          bottom 12px
        .buy
          position absolute
          right 18px
          bottom 18px
          padding 0 12px
          z-index 10
          height 24px
          line-height 24px
          border-radius 12px
          font-size 10px
          color #fff
          background: rgb(0,160,220)
          transition all 0.2s
          &.buyFade-leave-active,&.buyFade-enter
            opacity: 0
      .info
        padding 18px
        .title
          line-height 14px
          margin-bottom 6px
          font-size 14px
          color: rgb(7,17,27)
        .text
          line-height 24px
          padding 0 8px
          font-size 12px
          color rgb(77, 85, 93)
      .rating
        padding-top 18px
        .title
          margin-left 18px
          line-height 14px
          font-size 14px
          color rgb(7, 17, 27)
        .rating-wrapper
          padding 0 18px
          .rating-item
            position relative
            padding 16px 0
            border-1px(rgba(7, 17, 27, 0.1))
            .user
              position absolute
              right 0
              top 16px
              line-height 12px
              font-size 0
              .name
                display inline-block
                margin-right 6px
                vertical-align top
                font-size 10px
                color rgb(147, 157, 159)
              .avatar
                border-radius 50%
            .time
              margin-bottom 6px
              line-height 12px
              font-size 10px
              color rgb(147, 157, 159)
            .text
              line-height 16px
              font-size 12px
              color rgb(7, 17, 27)
              .icon-thumb_up,.icon-thumb_down
                margin-right 4px
                line-height 16px
                font-size 12px
              .icon-thumb_up
                color rgb(0,160,220)
              .icon-thumb_down
                color: rgb(147,153,159)

          .no-rating
            padding 16px 0
            font-size 12px
            color rgb(147, 153, 159)
</style>
